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     <a href="https://www.bilibili.com/">访问B站</a>
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<a href="https://www.bilibili.com/" target="_blank">访问B站2</a>
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<a href="https://www.bilibili.com/" target="_self">访问B站3</a>
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<a href="https://www.bilibili.com/" target="">访问B站4</a>
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